106721452 has 24 divisors (see below), whose sum is σ = 190630160. Its totient is φ = 52263360.

The previous prime is 106721371. The next prime is 106721467. The reversal of 106721452 is 254127601.

It is a super-2 number, since 2×106721452² = 22778936633976608, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 106721452.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66799 + ... + 68377.

Almost surely, 2^106721452 is an apocalyptic number.

It is an amenable number.

106721452 is a deficient number, since it is larger than the sum of its proper divisors (83908708).

106721452 is a wasteful number, since it uses less digits than its factorization.

106721452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1921 (or 1919 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 106721452 is about 10330.6075329576. The cubic root of 106721452 is about 474.3336206958. Note that the first 3 decimals are identical.

The spelling of 106721452 in words is "one hundred six million, seven hundred twenty-one thousand, four hundred fifty-two".